segue os comandos... ja coloquei uns pra ajudar
lspci
00:00.0 Host bridge: VIA Technologies, Inc. P4M900 Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. P4M900 Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. P4M900 Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. P4M900 Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. P4M900 Host Bridge
00:00.5 PIC: VIA Technologies, Inc. P4M900 I/O APIC Interrupt Controller
00:00.6 Host bridge: VIA Technologies, Inc. P4M900 Security Device
00:00.7 Host bridge: VIA Technologies, Inc. P4M900 Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge
00:02.0 PCI bridge: VIA Technologies, Inc. P4M900 PCI to PCI Bridge Controller (rev 80)
00:03.0 PCI bridge: VIA Technologies, Inc. P4M900 PCI to PCI Bridge Controller (rev 80)
00:09.0 Modem: SILICON Laboratories Intel 537 [Winmodem] (rev 04)
00:0f.0 IDE interface: VIA Technologies, Inc. Unknown device 5372
00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 07)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev b0)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev b0)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev b0)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev b0)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 90)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237S PCI to ISA Bridge
00:11.7 Host bridge: VIA Technologies, Inc. VT8251 Ultra VLINK Controller
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 7c)
00:13.0 Host bridge: VIA Technologies, Inc. VT8237A Host Bridge
01:00.0 VGA compatible controller: VIA Technologies, Inc. Chrome9 HC IGP (rev 01)
80:01.0 Audio device: VIA Technologies, Inc. VIA High Definition Audio Controller (rev 10)
lspci -n
00:00.0 0600: 1106:0364
00:00.1 0600: 1106:1364
00:00.2 0600: 1106:2364
00:00.3 0600: 1106:3364
00:00.4 0600: 1106:4364
00:00.5 0800: 1106:5364
00:00.6 0600: 1106:6364
00:00.7 0600: 1106:7364
00:01.0 0604: 1106:b198
00:02.0 0604: 1106:a364 (rev 80)
00:03.0 0604: 1106:c364 (rev 80)
00:09.0 0703: 1543:3052 (rev 04)
00:0f.0 0101: 1106:5372
00:0f.1 0101: 1106:0571 (rev 07)
00:10.0 0c03: 1106:3038 (rev b0)
00:10.1 0c03: 1106:3038 (rev b0)
00:10.2 0c03: 1106:3038 (rev b0)
00:10.3 0c03: 1106:3038 (rev b0)
00:10.4 0c03: 1106:3104 (rev 90)
00:11.0 0601: 1106:3372
00:11.7 0600: 1106:287e
00:12.0 0200: 1106:3065 (rev 7c)
00:13.0 0600: 1106:337b
01:00.0 0300: 1106:3371 (rev 01)
80:01.0 0403: 1106:3288 (rev 10)
ja peguando uma descrição mais detalhada aproveitei e...
00:09.0 0703: 1543:3052 (rev 04) (prog-if 00 [Generic])
Subsystem: 1543:3000
que é referente ao dispositivo do modem
(: